/Engine/Source/Runtime/Core/Public/Misc/ConfigCacheIni.h
Loads and generates a destination ini file and adds it to GConfig:
static bool LoadGlobalIniFile ( [FString](API\Runtime\Core\Containers\FString) & FinalIniFilename, const TCHAR * BaseIniName, const TCHAR * Platform, bool bForceReload, bool bRequireDefaultIni, bool bAllowGeneratedIniWhenCooked, bool bAllowRemoteConfig, const TCHAR * GeneratedConfigDir, [FConfigCacheIni](API\Runtime\Core\Misc\FConfigCacheIni) * ConfigSystem )